Sweet-and-Sour Balsamic-Glazed Spareribs

Ingredients

• 2.5 cups balsamic vinegar (don't waste your best balsamic here)
• 1 can beer dry (preferably )
• 0.5 cup t brown sugar dark
• 4 sprigs thyme sprigs fresh
• 1 tablespoon garlic minced
• 0.3 cup coarse mustard 
• 0.5 cup honey 
• 2 cups catsup 
• 4 servings kosher salt 
• 1 tablespoon blackstrap molasses 
• 1  onion diced red
• 2 racks spare ribs 
• 0.5 cup water 
• 1 tablespoon worcestershire sauce 

Equipment

• baking sheet
• oven
• pot
• aluminum foil
• broiler

Directions

1. Preheat the oven to 250°F and place each rack of ribs on a square of aluminum foil.
2. Sprinkle the ribs generously with salt, add a few sprigs of thyme to each, and then wrap well.
3. Place the rib packets on a cookie sheet and bake for 3 to 4 hours, until the ribs are extremely tender. Allow the ribs to cool slightly in their packets before opening.
4. To make the glaze, combine all of the ingredients in a large pot on medium-low heat. Allow to simmer, stirring every so often, for a few hours, until the sauce is nice and thick. Set aside.
5. To bring the ribs and glaze together, do the following. Turn on the broiler (if you don't have a broiler, get the oven up to 450°F).
6. Cut the rib racks into individual ribs, place them on a foil-lined cookie sheet or broiler tray, and brush them aggressively with the glaze. Pop them under the broiler and watch them carefully: all that sugar makes them burn very easily! You want the glaze to fuse with the ribs; it takes 3 to 4 minutes. If you're cooking the ribs in the oven, do so just until the glaze begins to bubble, 4 to 5 minutes.
7. Serve the ribs hot with lots of napkins—trust me, you'll need them.
8. * The recipe for the glaze makes enough for up to four racks, so if you have a hungry crew, double the meat.* Keep an eye on the sauce; it has a tendency to bubble up.
9. Excerpted from Secrets of the Best Chefs: Recipes, Techniques, and Tricks From America's Greatest Cooks by Adam Roberts (Artisan Books). Copyright © 2012 by Adam Roberts; styled food photography copyright © 2012 by Johnny Miller. Recipe inspired by Vinny Dotolo & Jon Shook.